3500K spectrum in stock - (good general purpose flowering spectrum)
We have Meanwell drivers in stock for most configurations, and can customise a build to your wattage requirements. With COB (Chip on board) LEDs, lowering the current increases the efficiency. But this reduces the power output.
The COB runs at 36V, so,
At 1.4A, the light will put out 36 x 1.4 = 50W.
At 2.1A, the light will put out 36 x 2.1 = 75W.
Running the COB above 2.8A will get you 100W, but at this power output, the efficiency of the COB is not much higher than "Chinese" LED alternatives, which are cheaper.
We recommend 1.4A or 1.75A for a nice efficient 50W light, which will be brighter than any 50W of LEDs on the market. The electricity savings can pay for itself over its lifespan.
The light pictured comes with a reflector and holder, thermally bonded to our largest heatsink, and a fan. It is really overkill for cooling.